[REPOST] MT-safe exception diffs for 971207

[Jason Merrill]

>>>>> Teemu Torma <tot@Trema.COM> writes:

> Please note that the USE insn is already at the beginning (after last parm
> insn), and emit_eh_context emits the call just before the USE insn.

But if a function that does not use exceptions inlines one that does in a
conditional context, that will break, no?

> When the compiler compiles inline functions as standalone at the end of
> the compilation, last parm insn is not updated and can not be used.

Ah.  That would be a problem.

Jason